Performance test system of hydraulic system of electric proportional control valve compensating excavator and detection method
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An electro-proportional control valve and hydraulic system technology, which is used in fluid pressure actuation system testing, mechanical equipment, fluid pressure actuation devices, etc., can solve the problems of high work intensity, high fuel consumption, and serious environmental pollution. Effects for easy adjustment, flexible capture and storage
Active Publication Date: 2018-12-21
XUZHOU UNIV OF TECH
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[0002] Hydraulic excavators have many actuators, complex compound actions, high work intensity, high fuel consumption, and serious environmental pollution.
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[0029]Electric proportional control valve compensation excavator hydraulic system performance test experimental system consists of analog right handle 2, analog left handle 3, main overflow valve 4, oil suction filter 5, oil tank 6, proportional variable pump 7, dynamometer 8, motor 9 , one-way valve 10, pressure sensors 10, 14, 16, 18, electric proportional multi-way valve 12, electric proportional throttle valve 13, hydraulic motor 15, hydraulic cylinders 17, 19, and controller 1 constitutes. The analog right handle 2 and the analog left handle 3 generate operating signals, the output signals are proportional to the operating angle, and the output operating signals are input to the controller 1, and the controller 1 controls the position of the spool of the proportional multi-way valve 12 according to the operating signals. The pressure sensors 10, 14, 16, 18 collect the pressure signals of the system, and transmit the pressure signals to the controller 1. The controller cont...
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Abstract
The invention relates to a performance test system of a hydraulic system of an electric proportional control valve compensating excavator and a detection method, and belongs to the technical field ofexcavators. The performance test system comprises a right simulating handle, a left simulating handle, a main overflow valve, an oil suction filter, an oil tank, a proportional variable pump, a dynamometer, a motor, a check valve, a pressure sensor I, a pressure sensor II, a pressure sensor III, a pressure sensor IV, an electric proportional multiway valve, an electric proportional throttle valve,a hydraulic motor, a hydraulic cylinder I, a hydraulic cylinder II and a controller. Electric proportional control and electric feedback are adopted to design a performance test experiment table of the pressure compensated hydraulic system of the electric proportional control excavator, the performance characteristic of the hydraulic system of an existing excavator can be researched, independentdesign can be adopted, the change is easy, additionally, the power consumption is low, the data acquisition is easy, and a good experiment research effect can be achieved.
Description
technical field [0001] The invention relates to a performance test system and a detection method of an excavator hydraulic system, in particular to a performance test system and a detection method of an electric proportional control valve compensation excavator hydraulic system in the technical field of excavators. Background technique [0002] Hydraulic excavators have many actuators, complex compound actions, high work intensity, high fuel consumption, and serious environmental pollution. In recent years, with the development of industrial technology worldwide, the problems of energy shortage and environmental pollution have become increasingly serious, and the demand for energy-saving technologies has become more and more urgent. The load-sensing system of hydraulic excavators can actively adjust the displacement of the pump according to the pressure of the load, and can perform power matching well and achieve good load control characteristics. Therefore, the research on ...
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